D

Big X

Finished

ビッグX

During World War II, Dr. Asagumo is summoned to Nazi Germany by Hitler to help develop a secret weapon called Big X. Fearing the consequences of its completion, the doctor conspires with his colleague Dr. Engel to delay the research. As Germany faces defeat, Dr. Asagumo implants a card containing Big X's secret into his son Shigeru, and is executed by the German army.

Twenty years later, the card is discovered inside Shigeru, now living in Tokyo. A Nazi-allied organization steals it and completes the Big X project, revealing the weapon to be a drug that can expand the human body without limit. Shigeru's son Akira must recover Big X and confront the Nazi Alliance and Dr. Engel's grandson, who seek world conquest.

Related

Share
Ask an AI

If you liked this, try these

Titles that share genres with this one.

D DonOtaku

The anime and manga community. We want to gather as much information as possible and make it available to everyone: the full catalogue, your list, news and what every member contributes.

We unify information from several aggregators —AniList, MyAnimeList and others— into a single database, and offer it for anyone to use. DonOtaku is an independent project.

Otakus

Social media

Covers, images, characters and trademarks belong to their respective owners and are shown for informational purposes. If you own any content, contact us.

© 2026 DonOtaku

D DonOtaku
Continue with Discord Continue with Google

By continuing with Discord or Google you accept the terms and conditions and the privacy policy.

or with your email

Forgot your password?

No account yet?